... Helpful to your healththe Nano nergy Cup work instructiona, Clean the cup with hot water before you use ... the sediment adhere to the water of the cup, clear it with vinegar.Suggesting:1, Cleaning ... minute is enough, just keep water in the cup for one minute before drinking ,( you can test ... cup. As the acidic of purified water is too long.Tianjin Luodakang Technology Co.,Ltd. Tourmaline magnetic ...